Maximum Energy Able to Do Work  [ENDORSED]






Moderators: Chem_Mod, Chem_Admin

Isa Samad 1L
Posts: 53
Joined: Fri Sep 29, 2017 7:07 am
Been upvoted: 1 time

Maximum Energy Able to Do Work

Postby Isa Samad 1L » Tue Feb 13, 2018 6:18 pm

I remember in lecture that Dr. Lavelle mentioned that Gibb's Free Energy should really be called Gibb's available energy since when ∆G < 0, Gibb's free energy can be thought of as the maximum energy that a system can use to do work. I'm guessing that since Dr. Lavelle specified this definition under conditions when ∆G < 0 that when ∆G > 0, this does not hold true. In other words, does the definition of Gibb's free energy as the maximum energy that a system can use to do work hold true when the reaction in question is non-spontaneous?

Chem_Mod
Posts: 17703
Joined: Thu Aug 04, 2011 1:53 pm
Has upvoted: 404 times

Re: Maximum Energy Able to Do Work  [ENDORSED]

Postby Chem_Mod » Wed Feb 14, 2018 12:10 pm

∆Gsys > 0 then it is the maximum work being done on the system.

Good luck everyone with your midterm.

OliviaShearin2E
Posts: 37
Joined: Fri Sep 29, 2017 7:05 am

Re: Maximum Energy Able to Do Work

Postby OliviaShearin2E » Wed Feb 14, 2018 1:04 pm

Can someone clarify what types of work? Some sites say maximum reversible work and others say maximum nonexpansion work.

Sirajbir Sodhi 2K
Posts: 47
Joined: Sat Jul 22, 2017 3:00 am

Re: Maximum Energy Able to Do Work

Postby Sirajbir Sodhi 2K » Wed Feb 14, 2018 2:16 pm

Maximum useful (nonexpansion) work is associated with Gibb's Free Energy.


Return to “Gibbs Free Energy Concepts and Calculations”

Who is online

Users browsing this forum: No registered users and 0 guests